如何从二进制文件读取浮点值 [英] How Read Float value from Binary File

问题描述

嗨.

我确实想从二进制文件中读取浮点值.

Hi.

I do want to read float value from Binary File.

FILE* fpBinary = fopen( File.c_str(), "rb");
FLOAT fValue;

fread((char*)&fValue, sizeof(char), sizeof(fValue), fpBinary);

当我这样做时，我会得到一些垃圾值.

谁能帮帮我吗?

谢谢!!

When I am doing this, I am getting some junk value.

Can anyone help me out???

Thanks!!

推荐答案

尝试:

fread(&fValue, sizeof(fValue), 1, fpBinary);

请参见此处 [

See here[^] for details of the parameter types.

尝试我的代码:

Try me code:

FILE *r_file = NULL;
float fd_value = 0;


r_file = fopen( "1.bin","rb" );
if ( NULL == r_file )
   return;

fread( &fd_value,1,sizeof( fd_value ),r_file );
fclose( r_file );


printf( "fd_value = %f\n",fd_value );

祝你好运！

Good luck!

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